Simplify: 4x2−42x−2\dfrac{\dfrac{4}{x^2-4}}{\dfrac{2}{x-2}}x−22x2−44 (assume x≠±2x \neq \pm 2x=±2).
2x+2\dfrac{2}{x + 2}x+22
2x−2\dfrac{2}{x - 2}x−22
2(x−2)x+2\dfrac{2(x-2)}{x+2}x+22(x−2)
4(x−2)2(x2−4)\dfrac{4(x-2)}{2(x^2-4)}2(x2−4)4(x−2)